I already explained it. The article says that the 750,000 households making over $300k will get an average of $25,000. Multiple that and you get about $19 billion. Divide that by the overall package costing $559 billion and you realize this is less than 4% of the overall package that you're outraged by.
Thes are all numbers given to us in the article. All I did was some critical thinking.
I will note that it didn't provide any links to the model they're referencing, which is suspicious.
Did you not read the article?